Video: The 'Today' show visits the 'Rain Room' in the Museum of Modern Art. The exhibit about the human impact on ecology uses 400 gallons of water to simulate a rainstorm, but special cameras keep the crowds, who wait for hours to walk through the rain, from ever getting wet.

When a group from The Philadelphia Orchestra found itself delayed on the tarmac for three hours waiting for their flight from Beijing to Macao as part of the 2013 Residency & Fortieth Anniversary Tour of China, a quartet of musicians decided to provide a "pop up" performance for the passengers.

Video: Rick Guidotti's life has been all about beauty and the power of images. However, 15 years ago while photographing a disabled woman, Guidotti was shocked by images in medical textbooks. Those images changed his life.